Micro (1w) Super Lead 68 in need of check for the layout

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Pat92
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Micro (1w) Super Lead 68 in need of check for the layout

Post by Pat92 » Wed Jun 08, 2022 12:48 pm

Hi guys, i found a guy nicknamed the tube roaster which made a micro super lead which is around 1watt and it sound amazing for the size.

He posted some rusty (values from his webstite and videos changed) schematics but never made a real layout of it.

As i built my first amp (a micro bassman from rob robinette) i wanted to get into learning to read schematics so i tried it with the micro super lead. Would you be kind enough to check the layout and if you want it try to improve it to sound closer to a SL 68 ?

Here comes the layout

https://www.mediafire.com/view/v3q7xzzg ... t.png/file

https://imgur.com/wDzZKYf

Here are the schematics :

https://thetuberoaster.files.wordpress. ... jpg?w=1160
https://thetuberoaster.files.wordpress. ... jpg?w=1150
https://thetuberoaster.files.wordpress. ... jpg?w=1150

Website : https://thetuberoaster.wordpress.com/20 ... d-circuit/

How it sounds : https://www.youtube.com/watch?v=2c1q9fwlg04

Updated schematic : https://www.youtube.com/watch?v=H37SHPo6PiY

there are one or 2 values of capacitors which changed and 2x150k which were removed by him between the 22nf and 4k7ohms it seems to be in accordance with the 68 super lead schematic.

PS : I want to keep this bias board even if it useless.

would you want to check it or even to improve it :) ?

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